Gluing machine



Nov. 27, 1934. c, l.. HUMPHREY Er AL GLUING MACHINE Filed Feb. 17, 19305 Sheets-Sheet l Nov. 27, 1 934. c. L.. HUMPHREY ET AL GLUING MACHINEFiled Feb. 1 7, 19H30 A INVENTORS Roem K. LEE AND BY CARROLL L. HUMPHREXZ 7 A TT ORNE Y Nov. 27, 1934. c, 1 HUMPHREY ET AL 1,982,004

GLUING MACHINE Filed Feb. 17, 1930 5 Sheets-Sheet 3 INVENTORS ROG-ER hiLEE.' AND BY CARROLL L. HUMPHRE'X A TT ORNE Y Nov. 27, 1934. c. 1HUMPHREY Er AL GLUING MACHIN 5 sheets-smet 4 Filed Feb. 17, 1930 EE.'AND L.

I ORS ROGER lf. L VENT CARROLL. BY

HUMPHREY ATTORNEY c. L. HUMPHREY ET AL 1,982,004

GLUING MACHINE Filed Feb. 17, 1950 5 Sheets-Sheet 5 INVENTORS HGER K.LEE. AND

CARROLL L.. HUMPHREY. BY

ATTORNEY Nov. 27, 1934.

.2 h2 m\ QQ Q2 m2 WS m3 mw E m" m5 Nnl miv mi IL WQ?! Patented Nov. 27,1934 UNITED STATES PATENT OFFICE GLUING MACHINE Delaware ApplicationFebruary 17, 1930, Serial No. 429,008

Claims.

This invention relates to a machine for spreading glue or other liquidon the surface of articles passed through the machine.

The main objects of this invention are to pro- 5 vide an' improvedmachine adapted for continuous operation, which will apply glue or otherliquid to the surface of articles passed through and then partially drythe treated article in an oven; to provide a combined gluer and dryer,each having continuously moving conveyors for handling the work in timedrelationship so that work passed through the gluer will be received andhandled properly by the dryer; to provide a machine of this characterparticularly suitable for applying glue to running boards used in theconstruction of motor vehicles; to provide a device of 'this kind whichwill apply glue to running boards and subject the same and previouslyglue coated running board mats, to drying treatments of relatedduration; and to provide a device of this kind for conveying glue coatedrunning board mats and glue coated running boards through respectivedrying chambers and delivering the same within close proximity of eachother so as to facilitate convenient assembly of the mats and runningboards by a single attendant.

An illustrative embodiment of this invention is shown in theaccompanying drawings, in which:

- Fig. l is a view partly in elevation and partly in verticallongitudinal section of our improved apparatus.

Fig. 2 is a top plan view of the same, with the oven shown in section,taken on the line 2-2 of Fig. 1.

Fig. 3 is an enlarged sectional view taken on the line 3-3 of Fig. 2.

Fig. 4 is an enlarged fragmentary detail View taken on line 4-4 of Fig.2.

Fig. 5 is an enlarged fragmentary view taken on line 5-5 of Fig. 2showing adjusting means for regulating the scraper blade which removesexcess liquid from the work.

Fig. 6 is an elevation of the side of our improved apparatus which isillustrated at the top of Fig. 2.

Fig. '7 is an elevation of the side of the device which is illustratedat the bottom of Fig. 2.

Fig. 8 is a fragmentary' elevation of parts shown in Fig. 1.

In the construction Shown in the drawings, the apparatus comprises aframe work 6 which supports a trough 7 adapted to contain a quantity ofglue or other liquid. An elongated, rectangular, longitudinally disposedtable 8 is mounted on the frame 6 and trough 7, with one end thereof 9projecting over one side of thetrough and terminating closely adjacentto a liquid conveying and applying roller 10. The roller 10 is mountedon the rim of the trough 7 at the opposite ends thereof. The outerperipheral surface of the roller 10 60 is provided with a plurality oflongitudinally extending, radially projecting ns 14, preferably formedof rubber or the like and which are adapted to convey liquid, such asglue, from the trough when the roller is rotated. The roller 10 is posi-65 tioned so that its top side is substantially in the same horizontalplane as the plane of the top of the table 8.

Means yare provided for rotating the roller l0 and comprise an electricmotor 15, the pulley wheel of which drives the belt 16, which passesaround and rotates a pulley wheel 1'7. The pulley Wheel 17 is fast on astub shaft 18, which carries a spur gear 19 keyed thereto and whichmeshes with and drives a gear wheel 20 keyed to one end 75 of the rollershaft 11. The opposite end of the roller shaft 11 is provided with asprocket gear 21 which carries and drives an endless sprocket chain 22.The chain 22 passes around and drives a sprocket gear 23 keyed on oneend of a shaft 24, 30 which is journaled on a frame work 25 which isbolted or otherwisesuitably secured to the trough 7 and supportingstructure 6.

The shaft 24 extends transversely of the frame 25 and near its medialpart carries a sprocket g5 gear 26 which supports one end of and drivesa Work conveyor chain 27. The conveyor chain 27 extends longitudinallyof the work table 8 in spaced parallel relation thereabove and theopposite end of the loop of said conveyor chain is engaged 'andsupported by a sprocket wheel 28 fast on the shaft 29, the ends of whichare journaled in bearings 30 and 31 secured to the table 8 at oppositesides thereof closely adjacent the end of said table which is oppositeto the roller 10. The conveyor chain is provided with a series of spacedlugs 32 on the outer surface thereof, which are adapted to engage piecesof work 33 and move such work longitudinally of the table 8 and over andin contact with the 100 liquid conveying roller 10.

The table 8 near its medial part is provided with a transverselydisposed shaft 34 journaled at its ends on the upper ends of arms 35 and36, which are pivoted at 37 and 38, respectively, 105 so as to permitthe shaft 34 to swing toward and away from the top surface of the table8. The shaft 34 carries a Weighted roller 39, which is adapted to holddown on articles of work being passed through the machine. 'Ihe shaft 34110 also carries a roller` 40 in position to contact with the lowerportion of the conveyor chain 27 and aid in holding said conveyor chainin denite spaced relationship with respect to the table top so that thelugs 32 will not become disengaged from the work when moving the workalong said table. A guiding arm 41 is pivotally mounted on the top.surface of the table 8 adjacent one side thereof and medially of itsends for guiding articles of work along the table. A tension spring 42is provided for one end of the arm 41 so as to cause the arm toyieldingly engage the articles of work and shift them to one side of thework table 8.

The table 8 adjacent its discharge end is provided with a pivoted lever43, one end of which is provided with a rubber brush or wiper 44, whichis adapted to scrape out excess glue when urged into contact with theside marginal edge of the article or work being passed through 'themachine. Yielding contact with the brush 44 against the work is securedby means of a tension spring 45, one end of which is secured to thelever 43 at the end opposite vto the brush 44 and the other end of whichis secured to the frame work 25.

At a point in the same horizontal plane and directly opposite to thebrush 44 is a similar Abrush or scraper 46, which is stationarilymounted on the frame work in position to engage the edge of the piece ofwork opposite to the edge engaged by the brush 44 for performing thesame func-,- tion.

Means are provided for scraping or wiping off excess glue from the undersurface of the piece of -work passed through this machine and comprisesa transversely disposed bar 47 journaled at its ends on the frame 25 andwhich carries a piece of angle rubber 48, one vflange of which isclamped to a laterally extending web 49 on the bar 47 and the otherflange of which extends upwardly and is tapered, as shown at 50 in Fig.5. One end of the bar 47 extends through the side frame 25 and isprovided with an arm 51 secured thereto by a pin 52. The outer or freeend of the arm 51 is embraced at diametrically opposite sides by setscrews 53 and 54, which are threaded through outstanding lugs 55 and 56,respectively. Lock nuts. 57 and 58 are provided fo'r the set screws 53and 54, respectively, for securing the screws rigidly in an adjustedposition.

When pieces of work have been passed along the table 8 and over thegluing roller 10 they are supported on a pair of sharp edged disk shapedrollers 59 and 60 carried in spaced coaxial relation on a shaft 61,which is journaled at its opposite ends in inwardly facing bearings 62and 63 mounted on the inner faces of the side frame 25. From there thework .passes to a similar set of sharp edged rollers 64 and 65 carriedin spaced coaxial relation on a shaft 66, one end of which is journaledon an inwardly facing bearing 67 secured to the inner face of the sideframe 25 and the other end of which passes through the side frame 25 andis journaled in a bearing 68 secured on the inner. side of said sideframe. The end of the shaft 66 which extends through the side frame 25protrudes therebeyond andlis provided with a sprocket wheel 69, keyedthereto, around which passes an endless sprocket chain 70, the outerperiphery of which meshes .with av sprocket gear 71 keyed on the shaft24.

Approximately midway between the shafts 61 posed shafts 78 and 79disposed in spaced parallel relation, one above the other. The shafts 78and 79 carry axially spaced sprocket gears 80 and 81, respectively,which support an endless chain conveyor formed of a plurality of links82 pivotally connected together at their ends. The pivot pins 83 for thelinks 82 are in the form of slender rods which extend from one of thechain belts to the other and the ends of which protrude said links andhave rollers 84 journaled thereon. The rollers 84 are adapted to travelin `an inwardly facing track of U shaped cross section so that the links82 are rigidly held in vertical position except when passing around the1 sprocket wheels upon which they are carried, at which time said linksare substantially perpenl dicular to the radius of the sprocket wheels.

Each of the'links 82- midway of their ends is provided with a rigid arm85, which extends out- 1 wardly perpendicularly to the link and which isadapted to receive and convey the articles of work passed into thedrying oven 77.

Closely adjacent the entrance thereof the oven 77 is provided with ashaft 86 and carries a pair 1 of spaced sharp edged disk rollers 87 and88 for receiving the work when passed into the oven. The shaft 86 isjournaled on suitable bearings 89 and 90. One end thereof protrudesthrough the wall of the oven and is provided with a 1 sprocket gear 91and 92. The sprocket chain 70 passes around the sprocket 91, providingadriving connection between the shafts 24 and 86. The oven 77 is alsoprovided with another shaft 93 which carries a pair of axially spacedsharp 1 edged disk rollers 94 and 95 for supporting the work when passedcompletely into the oven and prior to its being picked up by the ovenconveyor. The shaft 93' is journaled in suitable bearings 96 and 97 andone end thereof projects 1 through the lside of the oven andv isprovided with a sprocket gear 98, which receives a sprocket drive chain99, the other end of the loop of which passes around a sprocket gear 92keyed on the outer end of the shaft 86. A 1

'I'he oven 77 may also be provided with additional shafts and1supporting rollers for holding the work, if desired, such as the shaft101 whichy is driven by a sprocket chain 102.

Means are provided for driving the oven con- 1 veyor and comprise a wormgear 103 keyed on one end of the shaft 79. The gear 103 is driven by aworm 104 keyed on shaft 24 and the ratio is such that standard sizedarticles of work, such as steel running boards, will pass into the 1oven in timed relationship so that the arms of the oven conveyor willpick up the running boards at the present time so as to lift them out ofthe way of succeeding pieces of work.

-A suitable heater 105 is provided at the lower 1 part of the oven 77 sothat the heat therefrom passes up from the oven and partially dries theglue which has been applied to the pieces of work.

In the operation of this machine pieces of work, such as steel runningboards, are placed 1 on the work table 8 with their upper sides turnedface down; glue is placed in the trough 7, steam turned into the heaterand the electric motor 15 yis started. The motor 15 through the belt 16,pulley wheel 17 and gears 19 and 20, rotates the roller' 10, the lowerportion of which dips into the glue in the trough 7 and carries some ofthe glue up to the side thereof. Rotation of the roller 10 and shaft 11cause the sprocket wheel 21 to drive sprocket chain 22, which in turndrives sprocket wheel 23 keyed on shaft 24. Rotation of the shaft 24drives the table work conveyor belt 27 through the mediumof sprocketgear 26 keyed thereon. Movement of the conveyor chain 27 causes one ofthe lugs 32 thereon to engage the running board and either push or pullthe same along the table 8. When the running board 33 contacts with thespring actuated arm 41 it is pushed to one side of the table and alignedtherewith.

As the piece of work passes over the roller 10, the fins 14 thereonapply a coating of glue to the under side thereof and as the piece ofwork passes over the rubber scraper 48 the upstanding flange 50 thereofremoves excess glue, which drains and drips back into the trough 7. Thepiece of work then passes on to the rollers 59 and 60 and thence to therollers 64 and 65.

In proper timed relationship the piece of work is then passed into thedrying oven on the rollers 87, 88, 94 and 95 and any additional oneswhich may be provided. Rotation of the shaft 24 causes the worm 104 todrive the worm gear 103, thereby rotating shaft 79 and thus moving theoven conveyor in proper timed relationship. As the arms 85 move up intolongitudinal position from a downward hanging position they pick up thepiece of work which has been discharged into the oven and carry the sameslowly upwardly into the oven, thus allowing the glue to partially dry.As the arms 85 pass over the upper conveyor supporting sprocket 80 thepieces of Awork supported thereon drop over to the preceding arm, asshown in Fig. 3 of the drawings, and are thus lowered into the ovenright side up.

The weighted rollers 36 and 79 hold the pieces of work firmly down ontothe table and supporting rollers, respectively, and the rollers 40 and75 engage the inner side of the lower strand of the table conveyor chainso as to insure the lugs 32 remaining in engagement with the pieces ofwork.

At the same time the pieces of work have the excess glue scraped fromthe under side` thereof by the rubber scraper 48, the side scrapers 44and 46 remove the glue from the lateral edges of the running board andcause it todrain back into the trough 7.

Apparatus for conveying glue coated running board mats 107 through adrying chamber 108 and delivering themwithin close proximity of theoutlet of the oven 77 is provided on the front side of the machine asillustrated at the lower portion of Fig. 2. This apparatus comprises asupporting structure 109 having upright legs 109. Mounted on one end ofthe supporting structure is a table 110 and on the other end is thedrying chamber 108 which is supplied with heated air from the oven 77through a conduit 111. An endless belt conveyor 112 extends through thedrying chamber 108 and is disposed around spaced pulleys 113, 114, 115and 116 and over an adjustable pulley 117.

" The belt 112 extends between an idler pulley 1&8, and a driving pulley119 which is mounted 'vertical conveyor.

on an extension of the driving shaft 11. The belt passes over thedriving pulley 119 and extends between the latter and an adjacent idlerpulley 121. The pulleys 118, 119 and 121 are mounted on shafts 122, 120and 123 respectively, which are journaled on the supporting structure109 and the shaft 120 is secured to the shaft 11 by a flexibleconnection 124.

Mounted on the table 110, is a switch having an actuating member 126located in the path of the running boards 33 at the outlet of the oven77. When the running boards 33 approach the outlet of the oven 77 theyare urged outwardly by inclined bars 127 which are located within theoven 77 on the opposite sides of the As the running boards approach thetable 110 they engage the member 126 of the switch 125 and urge itdownwardly so as to open the circuit of the electric motor 15. Thisstops the operation of the horizontal conveyor27, the vertical conveyorand the endless belt 112. When the lowermost running board 33 is removedfrom the arms 85 and from engagement with the switch actuating member126, the circuit of the motor 15 is closed and the conveyors operateuntil the next successive running board reaches the member 126.

A partition 128 having an opening 129 ,is mounted between the upper andlower portions of the drying chamber 108 for providing upper 105 andlower compartments. The conduit 111 communicates with the lowercompartment into which heated air from the oven 77 is drawn by a fan130. The fan 130 drives the heated air through the opening 129 in thepartition 128 and 110 into the upper compartment of the chamber throughwhich the mats 107 travel.

Pivotally mounted on the front wall 131 of the machine is a metal slab132 which has pins 133 on its opposite sides that coact with catches 115l34vfor retaining the slab in a vertical position.

A substantially air tight bag 135 is located between the slab 132 andthe front wall 131 and is provided with an air inlet 136.

In operation, one attendant places running 120 boards on. the conveyorchain 27 and glue coated running board mats on the endless belt 112. Thechain l27 and arms 85 carry the running boards over the gluing rollerand through the drying oven 77 as described above and deliver therunning 125 boards to the outlet of the oven. 'Ihe endless belt 112carries the glue coated running board 'mats through the drying chamber108 to a position which is in close proximity to the outlet of the oven.A second attendant standing in front 130 of the table 110, removes onerunning board mat from the conveyor 112 at a time and places it on thetable with its glued side'up adjacent the sides of the form 137. He thenremoves a running board from the vertical conveyor and places it 135 ininverted position upon the running board mat. The partially driedcoatings of glueon the running board and mat cause the mat to adhere tothe board. i

The mat and board are lifted from the table 110 and mounted on thesupport 138 of the slab 132 while the latter is in an open position. Theslab is then rotated to a closed position and air or other fluid underpressure is admitted into the bag 135 through the outlet 136 by suitablevalve mechanism, not shown in the drawing. Ination of the bag 135 causesthe running board and mat to be subjected to a tremendous pressure whichfirmly secures the two together.

As each running board-.is removed from the 150 vertical conveyor theswitch 125 closes the circuit of the motor 15, thereby driving theconveyors until .the next successive running board is in position .to beremoved from the arms 85 by the second mentioned attendant.

Although but one specific embodiment of this invention has been hereinshown and described, it will be understood that numerous detailsv ofconstruction shown may be altered or omitted without departing from thespirit of our inven-4 tion as defined by the following claims.

What we claim is:

1. In apparatus for moving glue coated running boards and mats throughrespective chambers of an oven to adjacent outlets thereof; a conveyorin one chamber for carrying glue coated running boards from the inlet tothe outlet thereof, means in the other chamber of said oven-for feedingglue coated running board mats from the inlet to the outlet of thelatter chamber, mechanism for driving said conveyor and mat feedingmeans in timed relation so as to substantially simultaneously supply anattendant with a running board and mat, each having a partially dry gluecoating thereon, and means operable by engagement with said runningboards for stopping the movements of said conveyor and mat carryingmeans simultaneously when a running board is in registration with anoutlet of said oven.

2. In apparatus for moving glue coated articles through respectivedrying chambers of an oven to adjacent outlets thereof; a conveyor inone drying chamber for transferring a glue coated article therethroughfrom its inlet to its outlet', means in the other chamber for feedingglue coated articles therethroughfrom its inletto its outlet, drivingmechanism adapted to move said conveyor and feeding means in apredetermined timed relation, and apparatus engageable with one of saidarticles when the latter is in registration with an outlet of said ovenfor simultaneously deenergizing said driving mechanism.

3. Conveying mechanism including a pair of related conveyors, means forfeeding an article onto Athe loading end of one of said conveyors,mechanism vfor driving said feeding means and conveyors, in apredetermined timed relation, a movable support at the unloading end ofone of said conveyors for receiving said article, said support beingsusceptible of movement under the iniiuence of the weight of saidarticle, and control apparatus including means operable by movement ofsaid support under the influence of one of said articles for renderingsaid driving mechanism and both of said conveyors inoperative until saidarticle is removed from said support.

4. In apparatus for moving glue coated running boards and mats throughrespective drying chambers to adjacent outlets of the latter; an endlessconveyor in one chamber extending to Within close proximity of itsoutlet andhaving spaced arms adapted to receive and contact with onlylimited areas of said glue coated runningv boards, an endless belt typeconveyor in the other chamber extending beyond its outlet, mechanism fordriving said conveyors in timed relation 4so as to .substantiallysimultaneously present a partially dried glue coated running board andmat at said outlets, and control apparatus for said driving mechanismlocated at the outlet of one of said chambers having means operable byengagement with a running board for interrupting the movement of saidconveyors when a running board is disposed atsaid outlet.

5. In apparatus for moving glue coated articles through respectivedrying chambers of an oven from spaced inlets to adjacent outletsthereof, a conveyor in one drying chamber for transfer ring a gluecoated article continuously in one direction from the inlet to theoutlet of said chamber, a second conveyor in another drying chamberhaving oppositely moving sides adjacent the inlet and outlet thereofrespectively adapted to move articles in respectively oppositedirections through adjacent paths normal to the path of movement of saidfirst conveyor from the inlet of said second mentioned chamber to theoutlet thereof, driving mechanism adapted to move said conveyors in'apredetermined timed relation, and apparatus engageable with one of saidarticles when the latter is in registration with an outlet of said ovenfor simultaneously deenergizing said driving mechanism.

ROGER K. LEE.

vCARROLL L. HUMPHREY.

